the fact that i can use my android phone as a wireless modem without haveing to hack the iphone to get an app not availbale in the app store, I can simply connect my phone to the computer and use my 3g connection with my laptop anywhere there is a 3g signal not just free wireless, which has been very usefull on many business trips
You don’t need to jailbreak the iPhone to tether it, and you don’t need an app of any kind. It’s in the stem settings. That critique is from a couple of years ago. You do have to sign up for a tethering plan with your carrier, if they require it (as AT&T and Verizon do).
Android users have been able to get around that, but the carriers are cracking down.